Perforating device for message transmission



A. 31, 1937. w. G. RICE 2,0913% PERFORATING DEVICE FOR MESSAGE TRANSMISSION FiledF'eb. 11, 1935 4 Sheets-Sheet l T0 5 UPPL i /8/ I51 /5/ /5/ i I 162 /62 62 PERFORATING DEVICE FOR MESSAGE TRANSMISSION Filed Feb. 11, 1935 4 Sheetsfiheet 2 fizz/anion- I VQZCZO G. lice.

20 modifications of resistance values.

Patented Aug. 31 1937 PATENT 4 OFFICE PERFORATING DEVICE FOR lVIESSAGE TRANSMISSION Waldo G. Rice, ChicagoJll. Application February 11, 1935, Serial No. 5,917

-- 19 Claims.

This invention relates to reception and retransmission devices and more particularly to electricalrelay operated reperforators for enabling multiple telegraphic reception and trans- 5 mission over multiplex circuits, although certain features thereof may be employed with equal advantage for'other purposes.

It contemplates more especially the provision of electrically responsive reperforators or other signal recorders that are entirely solenoid actuated for connection toa telegraphic circuit through a transmission bank having a low energy drain so that their multiple connection will not impair primary signal transmission or reception. r

Methods and devices now used to accomplish multiple reception and transmission involve or require rather extensive revision of the distributor and/or printer connections as well as h Thisrenders the installation expense of multiple transmitters and/or retransmitters prohibitive in that extensive modifications in resistance values and wiring of the original or primary printer and/or dis- 25 tributor circuits are ordinarily necessary or required. Except for isolated and special in stances, multiple reception and/or distribution has not been practiced although there is a great and important need therefor. Then, too, re- 30 perforators of known construction are intricate, involve a large installation cost for multiple simultaneous use, and generally comprise an expensive .unit. Relaying of messages by manual reperforations for use with a transmitter at the 35 receiving stations, is the substitute practice for electrically responsive multiple reperforation and distribution. Known methods and apparatus are expensive, involve much time, and entail additional labor which are factors that render 40 multiple reception and distribution an important advance in electrical re-transmission and reception devices where such can be accomplished with equipment of the desired simplicity and flexibility and without entailing much time, ex- 45 pense or labor for installation in already existent circuits.

For instance, the present invention provides fqr simple, compact andinexpensive electrically operated reperforator units that can be con- 50 nected between 'a distributor and printer in a multiplex setup by mere attachment of suitable .plug and socket complements to the cut ends of the six wire channel preferably through a transmission bank oi low energy drain. The reperfo- 55 rator unit has similar leads terminating in a tween the printer and distributor.

corresponding plug or socket complement so as t afiord ready and instantaneous connection be- Similarly the reperforator unit may be readily detached, and

the printer circuits restored to their original cir- 5 I cuit setup by simply coupling together of the plug and socket previously, attached to the severed wires of the multiple channel.

It should be understood that in multiplex setups that utilize a cord and plug connection be- 10 tween the distributor unit and the printer plug, the intermediate relay unit and proposed reperforator are readily attachable by means of a cord terminating in an adapter plug. The adapter plug is acomplement of the regular 15 cord and plug provided between the distributor receptacle and the printer plug, thereby offering instantaneous attachment and detachment of the relay unit as well as the reperforator in such circuits. Reference has been made to multiplex circuits, but the relay unit comprising the subject matter of applicant's Letters Patent 2,023,290, and the reperforator embodying the teachings of the present invention, are likewise readily adaptable to simplex and duplex circuits operated on the start-stop method and employing printers provided with an independent selector magnet for each selector circuit as commonly used on multiplex channels, thereby offering wide usefulness and general flexibility on various types of circuits for multiplex reception and retransmission.

While an important feature of the relay unit or transmission bank is in the provision of relay coils of nominal or exceedingly low resistance values as compared with the comparatively high resistances of the regular printer coils and other resistances comprising the total resistance of each printer circuit usually though not necessarily employing six coils in number, yet an im- 40 portant feature of the reperforator is the complete solenoid operation thereof in multiple channels responsive to the signal pulses that are transmitted between the distributor and printer or other primary receiving unit. The reperforator solenoids are instantaneously responsive to signal impulses transmitted to the low energy drain coil windings of the transmission banks which enable any number thereof within a practical range to be instantaneously connected to a multiple channel system.

Then, too, reperforator's of the type embodying features of the present invention'are simple,

compact, comparatively inexpensive, and afiord re-transmission of messages to a large number of different stations without entailing any addi-- tional labor or time requirements. For instance,

- in selector circuits operating 250 milliamperes,

series connection of one relay-plate as described supra, will reduce the current intensity by approximately two milliamperes. Five such transmission banks connected in series between the distributor and printer would reduce the current intensity by about ten milliamperes which is still trivial in that such nominal variations leave unimpaired the wide marginal surplus provided for safe operation. A reperforator embodying features of the present invention may be instantaneously connected to each transmission bank, and these are simultaneously operated to record the code selections impressed upon the primary printer without impairment to the operation thereof.

One object of the present invention is to provide a reperforator that is entirely solenoid opersimplify the construction and improve the operation of singleplex and/or multiplex circuits for eifecting multiple reception, distribution or redistribution of electrically transmitted signals.

Still another object is to provide an electrically 3 operated reperforator that is simple, compact,

comparatively inexpensive, and capable of multiple connection to a simplex, duplex or multiplex system without impairment'thereto for effecting redistribution over a plurality of signal transmit- 35 ting channels.

A further object is to provide a novel reperforator device in conjunction with a transmission bank for enabling the ready incorporation of additional units thereof in any electrical transmission channel without the necessary modification of electrical circuits, resistance values orwiring changes in the original printer, distributor or reperforator circuit.

A still further object is to provide a simple, compact and self-contained reperforator unit that is capable of single or multiple inclusion in a receiving circuit of a signal transmission channel so as to afford multiple reception and redistribution without entailing any appreciable expense, time or labor.

Still a further object is to provide an inexpensive solenoid operated reperforator that is dependable and electrically responds to all variations in signal impulses when connected in single or multiple units to a transmission circuit for multiple reception and redistribution.

Other objects and advantages will appear from the following description of an illustrated embodiment of the present invention.

In the drawings:

Figure 1 is a perspective view of a skeleton reperforator arrangement embodying features of the present invention, it being shown connected toa circuit that is diagrammatically illustrated to clarify the showing.

Figure 2 is a plan view of a reperforator embodying features of the present invention.

Figure 3 is a front view in elevation of the reperforator shown in Figure 2.

Figure 4 is a sectional view taken substantially along line IVIV of Figure 3.

Figure 5 is a sectional view taken substantial- 1y along line V--V of Figure 2.

Figure 6 is a sectional view taken substantially along line VI-VI of Figure 2.

Figure 7 is an enlarged fragmentary view of the electrical tape feed cut-out that is capable of use in conjunction with the reperforator such as illustrated in Figure 1.

Figure 8 is a schematic wiring diagram of the electrical circuit and instrumentalities shown with more mechanical detail in Figure 1.

The structure selected for illustration comprises a bottom plate l0 which is of square or rectangular configuration and preferably though not essentially of non-magnetic material such as bakelite or other insulating composition. In this instance, another plate H is disposed above the bottom plate In, it being of similar size, shape and composition for spaced parallel support by a plurality of studs |2 which have lock nuts I3 with spacer collars l4 disposed therebetween to rigidly maintain the bottom and base plates I0 and H in spaced parallelism. The spaced par allel bottom and base plates l0 and II serve to receive the wiring therebetween for connection to the instrumentalities to be hereinafter described.

A plurality of code and tape feeding solenoids are'mounted in pairs, in this instance six pairs, |5-|6, |1|8, l9-20, 2|-22, 23--24, and 25-26, on triangular plates 21, 28, 29, 30, 3|, and 32 disposed and supported in substantially radial relation on the top base plate II with their apex centrally grooved to provide a compact arrangement. These triangular plates 21 to 32 are sustained by threaded studs 33 which project through the. corner regions thereof for threaded engagement therewith so that their free extremities will engage the top base plate H to serve as an adjustable support in conjunction with threaded studs 34 which are disposed intermediate each of the solenoid pairs |5|6, |1-|8, |9-20, 2|22, 2324, and 25@26 to project through and connect yoke plate 35 and the triangular plates 21 to 32 for threaded engagement with the top base plate H. In consequence thereof, the triangular solenoid supporting plates 21 to 32 are secured in position for Vertical adjustment as conditions may require for better and more satisfactory operation.

As shown, each of the solenoids |5 to 26 are provided with iron cores 36 which project from the upper ends for magnetic cooperation with armature bars 31 which are pivotally supported in superimposed linear alignment therewith. In

the present embodiment, the armature bars 31 are substantially rectangular in configuration, and are fulcrumed about pins 38 which bridge the furcated extremity 39 of standards 40 disposed in front of each pair of coils |5|6, |1.-| 8, |9--20, 2|22, 23-24, and 2526, for vertical support by each of the triangular plates 21 to 32, respectively.

In order to provide a greater magnetic attraction between the solenoid'cores 36 and the armature bars 31, a metallic bracket 4|. (Figure 2),

in this instance of substantially U-shaped configuration, envelops the armature bars 31 for attachment thereto by means of pins or other fasteners 42 so that the bottom of the bracket 4| will be in close proximity with the solenoid cores 36 within the magnetic lines of force that emanate from the pairsof solenoids or electromagnets |5|6, |1 |8, |9--2ll, 2l-22, 23-24, and 25-26. So as to limit the initial position of the armature bars 31 a post 43 is fixed to the tri angular plates 3| proximate to. their outward edge in radial alignment with the solenoids |5|6, |1|8, Iii-20, 2|22, 23-24, and

to a glass or other receptacle H supported there- 25-26, so as to receive the extremities of the armature bars 31 within the slot 44' provided proximate to their upper ends for communication with an axial aperture that threadedly receives an adjusting screw 45. The adjusting screw 45 extends within the slot 44 for any desired distance so as to control the initial position of the armature bars 31 that are normally urged downwardly at their inward extremities through the urge of a coil spring 46 that is attached thereto at one extremity thereof for anchored attachment at their other extremity to the apertured inward extremities 4'! of the triangular plates 3|. In order that the armature control screw 45 may be maintained in its adjusted position, a lock nut 48 is provided thereon to engage the upper extremity of the posts 43 (Figure 3). Consequently, the spring 46 will return the armature bars 31 to their initial position when the pairs of solenoids Iii-I6, l'|--|8, l9-28, 2-l--22, 23-24, and

25-26 have been de-energized.

The solenoids l5-l6,,|1-l8, I9-20, 2l--22, 23--24, and 25-26 preferably though not essentially are wound from number thirty-five gauge 25 copper enamelled wire with sufficient turns to provide approximately 400 ohms of resistance for each pair; therefore, each singular solenoid coil will have resistance of approximately 200 ohms. The windings on these coils terminate in leads 49 and 50, the former being connected to terminals 5 |-52 fixed to a terminal supporting plate 53 which, in turn, is attached to the posts 43 by means of screw fasteners 54. The lead wire 49 projects through the top base plate H for confinementin a conduit 55 that terminates in a plug 56 which confines a plurality of terminal 7 receptacles 51 for attachment to a complemental socket element comprising a part of a transafter.

It is to be noted that the armaturevbars 31 terminate inwardly in reduced extremities 58 which project through correspondingly shaped slots provided in the extremities of punch rods 59, in this instance six, that are vertically guided in a chambered bracket 60 of substantially rectangular cross section having horizontally spaced bottom and top sides 6| and 62. The chambered bracket 68 is supported in this instance by a standard 63 which extends downwardly to the top base plate H for attachment thereto by means of fasteners 64. Vertically aligned apertures are provided in the bottom and top 6! and 62 of the chambered guide member or bracket 60 to guide the punch rods 59 that extend upwardly for cooperation with a plate 65 that is disposed thereon to provide correspondingly aligned apertures 66 for the reception of the punch rods 59 at the end of their stroke responsive to the energization of the solenoids 15-46, ||--l8, l9-20, 2l-22, 23-24, and 2526.

It is to be noted that the top member 62 of the guide bracket 66 is provided with a groove 61 fixed to correspond with the cross sectional configuration of the paper tape 68, thereby allowing its passage therealong underneath the plate 65 to effect the perforation thereof responsive'to the operation of the punch rods 59 that discharge the material resulting from the perforation above the plate 65 for reception in a channelled member 69 which comprises a part of the guide plate 65 serving as the bottom thereof. The channelled member 69 terminates in a spout 10 which directs the waste punch material mission bank as will appear more fully hereinbeneath by the top base plate H.

The paper tape 68 is passed along the grooved top surface of the bracket members 62 by means of a feeding member comprising a sprocket wheel 12 fixed to a shaft 13 journalled in suitable bearings to carry a ratchet wheel 14 at the extremity thereof in confronting relation with a pawl 15. The teeth of the sprocket wheel 12 engage the feed holes or perforations 16 previously punched in the tape 68 for positive feeding thereof responsive to the pawl actuated ratchet wheel 14. To insure positive tape feeding, the tape 68 is maintained in contact with the feeding sprocket wheel I2 by means of a transversely disposed shoe H which comprises a vertically disposed plate 18 having spaced ears 19 for receiving a pintle 89 therebetween. The pintle 86 is mounted to an arm 8| (Figure2) that is fixed to the extrernity 82 of the feed sprocket shaft 73, thereby supporting the shoe TI above the tape 68. The shoe T! has an arcuate furcated extension 83 which projects longitudinally of the tape 68 along the median line thereof to exert a pressure thereon with the sprocket wheel 12 serving to sustain the tape 68 so that registry is effected between the sprocket wheel teeth and the linear feed perforations 16.

tape 68 in linear alignment along its path of traverse over the punches 59 mounted in their bracket housing 68. The tape 68 is furnished 'froma roll (not shown) which may be supported in a reel fitted to any part of the frame IB- H or above the instrumentalities described supra as commercial practice may dictate.

Now, then, the pawl 15 is, in this instance, joined to a plate 8'! which is attached to an iron rod 88 comprising a core .of a feeding solenoid or electro-magnet 89 mounted on a plate member 98 by an axially disposed lug 9| which serves as a limit stop for the core vrod 88. The solenoid supporting plate 98 is sustained upon the base plate I I by means of threaded studs 92 which have nuts 93 in engagement therewith to properly space and support the plate 9|] in its desired position relative to the ratchet wheel 14 so that the pawl 15 will be in proper relation thereto to impart intermittent rotation thereto responsive to the reception of the solenoid core 88.

As shown, the solenoid supporting plate 96 has upstanding side walls 94 and 95, the latter being provided with an angular bracket 96' attached to the top thereof so as to provide a horizontal extension 91 for carrying an adjusting stud 98 which is in threaded engagement therewith to project vertically therethrough in the path of the pawl plate 81 so as to limit its upward movement. The position of the screw 98 relative to the pawl plate 81 is maintained by the lock nut 99 in threaded engagement with the stud 83 so that the downward and upward movement of the solenoid core 88 together with its attached pawl '15. is controlled'by the lug 9| and: the adjustable stud 98, respectively. A spring I89 is anchored at one end thereof to a pin l0| carried by the pawl plate 91 while the other extremity thereof is mounted to a stud I02 fixed to the top corner region of a vertical standard or plate 63 described supra.

Another spring I03 is fixed at one extremity thereof to the stud I02 for a vertically downward extension with the other extremity thereof fixed to a bell crank lever E84 pivoted-about a stud E05 anchored in the vertical standard or plate 63 so that the other arm I06 of the bell crank lever liii will carry a roller N11 for registry with the space between the teeth of the ratchet wheel 14, thereby retaining the latter to its intermittently and successively actuated position responsive to the pawl 15. It is obvious, therefore, that the ratchet wheel 14 has no freedom of movement except responsive to the positive actuation of the pawl 15 in that the rollers I01 serve as an indexing expedient under the influence of the spring I03 which normally maintains such in engagement with the periphery of the ratchet wheel 14.

It should be observed, however, that the feeding solenoid core rod 88 is normally maintained in its extreme upward position when the solenoid 89 is de-energized, this being accomplished by a spring impelled member I08 which has an extension I09 (Figures 1 and 7) that projects heneath the pawl plate 81, it being urged upwardly by means of a spring IIO toreturn the pawl 15 to its initial position after each actuation. A lead wire III connects the windings of the solenoid 89 to a tubular jack 51 comprising a part of the plug 56. Another lead wire I I2 extends from the windings of the solenoid 89 to a pair of coils H3 and H4 supported by a bracket I I5 fixed to a vertical plate H6, the coils H3 and H4 serving as a cut-out for the feeding solenoid 89 when employed in conjunction with a Mux system wherein the six-pulse is always beating to punch feed holes in the tape 68 andto constantly effect the feeding thereof even though there is no code selection as will appear more fully hereinafter.

The vertical cut-out coil supporting plate I I6 is supported by a metallic bracket I I1 which is attached at the bottom thereof to the top base plate II by one of the fastener nuts I3 thereof. A bolt H8 extends through the top of the bracket H1 and the plate H6 to effect the support thereof with the feed cut-out solenoid coils H3 and H4 having a horizontal top bracket plate H9 attached to the cores I20 and I2I thereof by means of nut fasteners I22 and I23, respectively. The top horizontal bracket plate II9 has its edge secured to the supporting plate II6 to confront the horizontal bottom plate H5 that is similarly attached, thereby supporting the feed cut-out solenoids H3 and H4 therebetween. The solenoid coils I I3 and I I4 are connected in series and have a total resistance of approximately forty ohms so that their cores I20 and I2I will cooperate with an armature I25 (Figures 1 and 7) as will appear more fully hereinafter.

The cut-out armature I25 is, in this instance,

of key-shaped configuration (Figure 2) so as to tudinal median line of its elongated body I29.

The transversely alignedears I26 and I21 are provided with depending pins I30 for registry with correspondingly sized apertures provided in a transversely disposed strip I3I fixed to the horizontal top plate H9. The strip I3I serves as a supportfor the armature pins I30 which is a fulcrum for the solenoid armature I25. This arrangement provides a sensitive mount for the armature I25 which will respond to slight electrical impulses and be capable of delicate adjustment. The armature I25 has a longitudinally disposed insulation plate I32 fixed thereon to confront an upward limit stud I33 adjustably carried by a post I34 anchored in the horizontal top plate H9.

A threaded stud I35 (Figure 3) is fixed to the extremity of the armature I25 to adjustably control a resilient terminal or contact I35 mounted on the underside of the armature I25 to confront a contact terminal I31 fixed to the solenoid top plate M9 for connection through a wire I38 to a tubular terminal jack 51 provided in the plug 56. As described supra, the plug 56 has a sufiicient number of terminal jacks 51 for lead wires 59, Hi, and I38 coming from each of the solenoids I5, I1, I9, 2!, 23, 25, 89, and H4 for instantaneous connection to a transmission bank as will appear more fully hereinafter. A coil spring 539 is anchored to a nut I40 in threaded engagement with an elongated stud I 4| which extends downwardly through the bottom coil plate H5 for engagement therewith. A lock nut I42 engages the spring adjusting nut I40 to preclude the accidental displacement thereof so that the tension in the spring I39 will not vary unless adjusted.

A rod I43 extends from the spring I39, it having the free extremity thereof provided with an enlarged head for lodgment in an aperture through a slitted lateral opening provided in the ear I28 of the armature I25. I38 normally urges the armature I25 in a counterclockwise direction (viewed from Figure 3) for a distance determined by the stud I33 so as to l36 and H31 when the solenoid coils H3 and H4 are de-energized. A spring plate or latch M4 is pivoted to the armature I25 so as to engage the coiled spring extension rod I43 for attachment retention by the armature against accidental displacement and to insure a firm electrical connection to the lead wire II 2 in circuit with the winding of the feed coil 89. The convolutions comprising the windings around the peripheral surfaces of the cut-out cores I20 and I2! to comprise the coils II3 and H4 are connected through Consequently, the spring I normally effect the separation of the terminals lead wires I45 and I46 in series with lead wires I31-I38 and 50 in circuit with the tape feeding coil 89 through the armature I25 and the code bar solenoids or electromagnets I5-I5, I1-I8, 19-20, 2I-22, 23-24, 25-26, respectively. In the so-called Mux system, therefore, the tape 68 will not feed unless a code selection is first made through the code bar solenoids I 5-I6, I'I-I8, I9-20, 2I-22, 23-24, and 25-26. It is to be noted that the feed punch solenoids 25 and 26 have their terminal leads 49-50 connected to the source of power supplythrough lead wires I4'I-I 48 that are, in this instance, connected to the lead wire I I2 and tubular jack 51, respectively, the lead wire I48 having its own jack 51 in the plug 56 while lead wire I41 is connected to the same jack 51 in which the lead wire III terminates. As a result, the lead wire 50I41 of the coils 25-26 is grounded by connection to the terminal and lead wire I31-I38- through the armature I25 of the cut-out coil II 3-I I4 so as to stop beating of the feed hole punch and the tape feed that is actuated by the coils 25-26 and 89. This places the ground through the cut-out armature I29 rather than direct so that both the feeding as well as the beating of the feed punch is eliminated when no signal code selection takes place.

It should be understood that the sixth pulse cut-out solenoids H3 and H4 together with its auxiliary instrumentalities described supra. are only included when the above described perfo- 5 rator device is connected through the plug 56 to a transmission'bank I56 having a plug I5I provided with jack pins I52 complemental to the tubular jacks 51, to the so-called Mux telegraphic circuit. The Mux circuit has a constantly beating .sixth pulse which would ordinarily punch feed holes 16 in the tape 68 and effect the feeding thereof even though no code selections effected through any one or all of the first five pulse circuits. This sixth pulse tape feed cut-out mechanism functions when there are no code selections, since the terminals I36-I51 are normally separated unless a code selection is made previous to the operation of the sixth pulse which sends current through the solenoids I I6 and I I4, there- 20 by effecting contact between terminals I36-I61 to energize the feed solenoid 86 to feed the tape 66 one step forward within the capacity of the ratchet wheel 14 and pawl 15.

The residual magnetism in the solenoid cores I26-I2I holds the armature I25 down for continued contact between the terminals l36-I36 for at least one complete operation to insure feeding of the tape 68 for the next code selection. However, the feed punch 56 operated by sole- 36 noids 25 and 26 is first energized by the sixth pulse transmission bank relay I53 which permits its double acting armature I54 to contact with the terminal I55 during its up-stroke. This permits current to pass through the resistance I56 whose terminal cooperates with a manual switch I51 for connection to the terminal jack pin I52 that leads to the wire I48 connected to the feed punch solenoids 25-26. On the down stroke of the armature I54 responsive to the energization of the transmission relay I53, armature contact is effected with the terminal I56 that closes the circuit through the wire I59 having connection to a jack pin I52 which connects with the lead wire I36 by means of the tubular jack 51 when the complemental plug elements 56 and I5I are in telescopic engagement, this being necessary or at least highly desirable in connecting the reperforator through the transmission bank I56 that receives its impulses for feeding of the tape 66 and recording the code selections through the operation of the punches 59 from the printer I66 that is connected to the distributor I6I comprising conventional telegraphic equipment.

Now, then, in a start-stop telegraphic system, the cut-out solenoids H3 and II4 are not required, and these may be shunted from the circuit by means of switch jacks I62 mounted on the vertical plate II6 thereby affording the operation of the punch and feed solenoids 25-26 1 and 89, respectively, without interference or influence from the cut-out coils H3 and H4. Further, the transmission bank I56 has lead wires I62 that are in electrical connection with terminal pins I52 for placing the first five code selection armatures I63 which cooperate with relays I64 having lead wires I65 and I66 terminating in jack pins I61 and I68, respectively, for telescopic engagement with corresponding opposite plug sections I69 and I10 extending from the secondary printer and distributor as will appear.

A small ammeter, I'll is in circuit for rapid and precision adjustment of more fully hereinafter.

the armatures I54 and I63, in this instance six, of the relays I53 and I64. The ammeter terminals I12 and I13 are in circuits with the resistors I14, I15 and I16 through pin jacks I11 and I16 so that interchanging the pin jacks I11 and I16 reverses the current through the meter I1I when a negative battery is employed in connection with the power source leads I16 and I which are in circuit with the relay terminal contacts IM and the jack pins I66'for furnishing power to the reperforator I6 described supra.

The ammeter IN is shunted out when not used for adjustment purposes so that it is selectively incorporated in the relay circuits. Another pair of pin jacks I62 and I66 are provided in the relaycircuits, the relays I53 and I64 being so grouped that resistance I14 is in circuit with the single sixth pulse relay armature I54 (extreme left in Figure 1) while resistances I15 and I16 serve the remaining five selector relays I64 which operate the selector solenoids or magnets on the reperforator. These resistances I14, I15 and I16 each have an approximate resistance of ohms and serve to determine the current flow through the sixth pulse relay I56 and remaining five selector relays I64. Now, then, by interchanging the pin jacks I62 and I66 (Figure 1) the meter III will be transferred from the sixth pulse relay' I53 to the bank of five selector relays I64 for adjustment of the relay armatures I66 thereon. A

manual switch I64 is placed in the battery circuit to enable the disconnection of the power source from the relay contacts I56 and I6I and solenoids I5-I6, Il -I6, lit-26, 2I-22, 26-24, and 25-26 that operate the reperforator punches 59. An exteriorly accessible cord I65 constituting an extension of the switch I64 is also provided for the purpose of disconnecting the battery from the relay contacts I56 and I6I and the power to the reperforator solenoid coils I5 to 26. The cord extension I65 is used when the transmission bank I56 is completely confined by a housing or the interior otherwise rendered inconveniently accessible.

The details of this transmission bank I56 and the manner of its operation together with the adjustment of the armatures I54 and I66 are fully' disclosed in my Letters Patent 2,023,290, dated Dead, 1935. This relay action is accomplished by connecting plug I5I to the reperfora- --tor I6 which is provided with a complemental plug attachment 56, and thereupon the plug containing pin jacks I66 is connected to the complemental tubular jacks provided in a plug body I16 which have lead wires connected to a standard telegraphic distributor I6I. Then, too, the plug body containing the pin jacks I61 is connected with complemental tubular jacks provided in a plug body I66 which have lead wires connected to the standard primary printer I66, thereby plac- I56 and I64 so that the desired number of additional secondary reperforators may be placed in series through corresponding transmission banks or relay plates I56 by establishing connection with their respective plugs I5I to function simultaneouslywith the primary printer. This relay-plate:

' means of reperforated copy. to any number of difierent stations through time transmitters orcoal or even remote;

by printer extensions to locations.

For each additional secondary reperforator ing the printer coils in circuit with the relay coils that produces a tape copy, a relay-plate I50 of the type described supra may be incorporated into the distributor or primary printer circuit so long as the additional resistance thereof will not impair the operating margin of the current intensity required for the primary printer and/or reperforator and/or for the added secondary printers and/or reperforators. The feature of trivial resistance values in the relay-plate or bank I50 together with the solenoid operated re perforator I0 embodying features of the present invention, is of primary importance in that the series connection of a' large number (as many as five or more) of the above described relay-banks I50 to distributor circuits have proven successful. Trivial resistance values are made possible in a large measure by the precision adjustment afforded by the test ammeter HI and the sensitive mounting of the relay armatures I54 and I63 which enable the use of low resistance relay coils I53 and I64. It should be noted that when the switch I5! is displaced to connect with lead wire I80, the relay bank I50 functions precisely as described in my copending patent application, its special use in connection with the reperforaior I0 is to operate the sixth pulse solenoid 89 which moves the tape forward. Also the seventh wire is used to operate the feed hole solenoids or magnets 25 and 26 through relay terminals contact I which contact I58 controls the solenoid 89; consequently relay armature I54 has a double contact I55I58 instead of only a single contact disclosed in my copending patent application.

It is worthy of note that the pulses received by the primary distributor I6I are of relatively brief duration, andthese short pulses serve to set up combinations in the primary printer I which is designed to respond to such pulses. These pulses, however, are much too short or weak for the direct operation of any additional receiving unit whether such be the reperforator I0 or an additional printer (not shown) connected in series with the primary printer I 68. These short primary pulses are lengthened by resort to the transmission bank I56 that has a precision meter I II purposed for the adjustment of the relay armatures I54 and I63 (Figures 1 and 8) to precisely determine, adjust and extend the length of the pulses received from the primary distributor IBI. The residual magnetism of the iron cores in the relay coils I53 and I64 serve to retard the break of the contacts I58 and MM with their respective armatures I54 and I53 to provide the necessary time interval for successfully performing perforation by the direct action of the reperforator pins 59 on the tap 68 (Figure 1) effected by the magnet coils I5 to 26.

The operation of the reperforator II! (Figures 1, 2, and 8) is as follows: As described supra, the six relay coils I5-'I6, I'I-IB, I53-28, 2I22, 23- 24, and 25-26 are connected in series to the six primary printed circuits II 66 through lead wires 49 having a common return 50I I 2I45- I38 with their connection to the aforesaid primary printer circuits I65I66 controlled by five code armature-relay units I63I64 and one sixth pulse feeding armature-relay unit I53I54 (Figure 8). These relay coils I53 and I64 are of low or negligible resistance so that their inclusion in the primary printercircuits I65- IB6 will not impair the working balance thereof.

Now, then, assuming the letter L is represented by the combined operation of the second and fifth perforating code bars 31 of the coils III8 and 23-24 with the first, third, fourth pulses represented by coils I 5I6, I920, and 2I-22, respectively, remaining inoperative, and that this particular code selection is effected by the distributor I6I Then the second and fifth pulse primary circuits I65I66 (viewed from right in Figure 8) close to correspondingly operate the primary printer I60, and the second and fifth relay contacts I8I (viewed from the right-Figure 8) also close to energize coils II-I8 and 23-24 which directly actuate their respective code bars 37 and perforator pins 59 (Figure 1) operatively connected therewith.

After the second and fifth pulses or any of the five code pulses have been operated for difierent combinations controlled by the distributor I6I, a local contact (not shown) embodied as an element of every distributor I BI, closes and energizes the sixth pulse relay coil I53 which, in turn, operates the feed magnet 25--26 of the reperforator I 0 to move the tape 68 one step forward (Figure 1). As thearmature I54 is restored to its initial position upon the breaking of the primary sixth pulse circuit I65I66 (viewed from the right in Figures 1 and 8) a contact I58 which also serves as a back stop for the armature I54, closes the circuit IIII48 to operate the feed hole perforator magnet 89 resulting in a feed hole perforation 16 on the tape 68 (Figure 1), thereby completing one full operation with all of the instrumentalities returned to initial inoperative position for succeeding operation of any code combinations in a similar manner as effected by the primary distributor I6I.

It is to be noted that the common return I38 I46 (Figure 8) of the five code circuits-4950 pass through coils I I 3I I 4 constituting the sixth pulse cut-out magnet, the armature I25 and con- I tact I 31 of said magnet II3-I I4 controlling the closing of the two circuit wires 49-50 and III- II2 leading to the feed magnet 25-25 and feed hole perforator magnet 89. Should no code selection be made, the sixth pulse cut-out magnet |I3II4 will function to prevent the operation of the feed magnet 25-26 and feed hole perforator magnet 89. This occurs owing to the fact that the cut-out magnet armature I25 remains disengaged relative to its contact I31 for rendering the feed hole magnet 25-26 and feed magnet 89 inoperative so that blank tape 68 will not be fed until another code selection is made. The armature I25 is so adjusted as to cause contact with the terminal I31 for a complete operation owing to the residual magnetism possessed by the iron cores of the coils II3-I I4. In multiplex circuits as shown in Figure 8, the distributor I6I operates the sixth pulse even though no code selection is made during each operation so that the cut-out magnet II3I I4 serves the important function of precluding unnecessary feed hole perforator action and useless feeding of the tape 58. In start and stop systems, the cut-out magnet I I3-I I4 is not necessary.

Various changes may be made in the embodiment of the invention herein specifically described without departing from or sacrificing any of the advantages of the invention as defined in the appended claims.

I claim:

1. A reperforator including a plurality of pulse circuits for electrical signal recordation comprising a plurality of electromagnets, electrical means in said pulse circuits for lengthening the pulses to correspond with the electrical requirements of said electromagnets to insure their proper operation, code bars operatively connected to said elecand an additional electromagnet for directly feeding said tape responsive to the operation of any one or combination of said code bars.

2. A reperforator including a plurality of pulse circuits for electrical signal recordation comprising a plurality of electromagnets, electrical means in said pulse circuits for controlling the duration of the pulses to said electromagnets, code bars operatively connected to said electromagnets to serve as armatures thereof, means for directing a tape in the path of said code bars, and means comprising an additional electromagnet for directly feeding said tape responsive to the.0pera tion of any one or combination of said code bars.

3. A reperforator including a plurality of pulse circuits for electrical signal recordation comprising a plurality of electromagnets, arm ature code bars directly responsive to said electromagnets, means for directing a tape in the path of said code bars, tape perforating pins connected to said code bars, means for feeding said tape responsive to the operation of any one or combination of said code bars, an electrical circuit connected to said electromagnets for selectively distributing electrical impulses to said electromagnets to effect the energization thereof for corresponding code bar operation, and means in said electrical circuit for changing the pulses to correspond with the electrical requirements of said electromagnets to insure their proper operation.

4. A reperforator for electrical signal recordation comprising a plurality of electromagnets, code bars comprising a part of the armatures of said electromagnets, means for directing a tape in the path of said code bars, another electromagnet, said last named relay having a code bar armature, a pin connected to said last named armature code bar for perforating feed holes in said tape, a pawl operatively connected to said last named electromagnet, a ratchet wheel in the path of said pawl, means operatively connected to said ratchet wheel for intermittently feeding said 7 tape during one directional stroke of said last named code bar responsive to the energization of said last named electromagnet, and means for effecting a feed hole perforation in said tape during the opposite directional stroke of said last named code bar.

5. A reperforator including a plurality of pulse circuits for electrical signal recordation comprising a plurality of electro-magnets, code bars operatively connected to said electro-magnets, tape in the path of said code bars, another electromagnet, said last named electromagnet having a code bar armature, a pin connected to said last named armature code bar for perforating feed holes in said tape, a pawl operatively connected to said last namedelectro-' magnet, a ratchet wheel in the path of said pawl, means operatively connected to said ratchet wheel for intermittently feeding saidtape responsive to the energization of said last named electro-magnet, and electrical relays connected to said electromagnets for selectively distributing and controlling the electrical impulses to said electromagnets to effect the intermittent feeding of saidtape and the operation of said code bars for recordin the message on said tape.

6. A reperforator including a plurality of pulse circuits for electrical'signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means for guiding a tape in the path of said code bars, electromagnets grouped on said frame, said electromagnets having armatures connected to said code bars to directly effect the operation thereof, an additional electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforation of said tape responsive to selective signal energization of said code bar electromagnets, and means in said pulse circuits for lengthening the impulses to correspond with the electrical requirements of said electromagnets to insure their proper operation.

'7. A reperforator including a plurality of pulse circuits for electrical signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means for guiding a tape in the path of said code bars, electromagnets grouped on said frame, said electromagnets having armatures connected to said code bars to effect the operation thereof, means including an electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforation of said tape responsive to selective signal energization of said code bar electro-magnets, and means in said pulse circuits for changing the impulses to correspond with the electrical requirements of said electromagnets to insure their proper operation.

8. A reperforator including a plurality of pulse circuits for electrical signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means for guiding a tape in the path of said code bars, electromagnets grouped on said frame, armatures between said electromagnets and code bars for operating said code bars, means including an electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforai I for guiding a tape in the path of said code bars,

electromagnets grouped on said frame, armatures confronting the coils of said relays for operative connection to said code bars for directly operating said code bars, means including an electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforation of said tape responsive to selective signal energization of said code bar electromagnets, said electromagnets having lead wires extending from the coils thereon, and electrical relays connected to said electromagnets for controlling and selective signal conductance thereto to energize corresponding electromagnets for the purpose set forth. I

10. A reperforator for electrical signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means for guiding a tape in the path of said code bars, electromagnets grouped on said frame, armatures confronting the coils of said electro-magnets for connection to said code bars for directly operating said code bars, means including an electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforation of said tape responsive to selective signal energization of said code bar electromagnets, said electromagnets having lead wires extending from the coils thereon, electrical relays connected to said electromagnets for controlling and selective signal conductance thereto to energize corresponding electromagnets, and a separable plug connection between said transmission bank and the lead wires of said magnet coils so that ready connection and disconnection can be effected therebetween.

11. A reperforator for electrical signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means 7 for guiding a tape in the path of said code bars,

elcctro-magnets grouped on said frame, armatures confronting the coils of said electromagnets for connection to said code bars to effect the operation thereof, means including an electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforation of said tape responsive to selective signal energization of said code bar electromagnets, said electromagnets having lead wires extending from the coils thereon, electrical relays connected to said electromagnets for controlling and selective signal conductance thereto to energize corresponding electromagnets, and means for precluding the feeding tape unless said signal code bar electromagets are energized responsive to a code selection for message recordation on said tape.

12. A reperforator for electrical signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means for guiding a tape in the path of said code bars, electromagnets grouped on said frame, said electromagnets having armatures connected to said code bars to effect the direct operation thereof responsive to each code impulse or combination of impulses, means including an electromagnet for intermittently feeding said tape prior to code bar operation to efiect the perforation of said tape responsive to selective signal energization of said code bar electromagnets, said electromagnets having lead wires extending from the coils thereon, electrical relays connected to said electromagnets for selective signal conductance thereto to energize corresponding electromagnets, and means including a relay mechanism for precluding thefeeding of the tape unless saidsignal code bar electromagnets are energized responsive to a code selection for message recordation on said tape.

13. A reperforator for electrical signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means for guiding a tape in the path of said code bars, electromagnets grouped on said frame, said electromagnets having armatures connected to said code bars to effect the direct operation thereof responsive to each code impulse or combina= tion of impulses, means including an electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforation of F said tape responsive to selective signal energization of said code bar electromagnets, said electromagnets having lead wires extending from the coils thereon, electrical relays connected to said electromagnets for controlling and selective signal conductance thereto to energize corresponding electromagnets, normally spaced terminals for controlling the energization and deenergization of said tape feeding means, and means for effecting contact between said terminals responsive to effecting a code selection to perforation of said tape responsive to selective signal energization of said code bar electromagnets, said electromagnets having lead wires extending from the coils thereon, electrical relays connected to said electromagnets for controlling and selective signal conductance thereto to energize corresponding electromagnets, normally spaced terminals for controlling the energization and de-energization of said tape feeding means, and electromagnetic means for effecting contact between said terminals responsive to effecting a code selection to, provide for tape feeding with each code selection.

15. A reperforator for electrical signal recordation comprising a frame, a plurality of code bars in predetermined alignment on said frame, means for guiding a tape in the path of said code bars, electromagnets grouped on said frame, armatures extending between said electromagnets and said code bars, to effect the operation of the latter directly responsive to the former, means including an electromagnet for intermittently feeding said tape prior to code bar operation to effect the perforation of said tape responsive to selective signal energization of said code bar electromagnets, said electromagnets having lead wires extending from the coils thereonjelectrical relays connected to said electromagnets for con trolling and selective signal conductance thereto to energize corresponding electromagnets, normally spaced terminals for controlling the energization and de-energization of said tape feeding means, and electromagnetic means for effecting contact between said terminals responsive to effecting a code selection, to provide for tape feeding with each code selection, said last named electromagnet means being possessed of sufficient magnetism to retain said, terminals in contact for one complete operation to insure feeding of the tape for successive code selections.

16. A recording systemof electrical circuits comprising a plurality of pulse circuits for effecting code selections, means in said circuits for prolonging the duration of the pulses, correspondingly responsive electrical circuits including code bars for effecting code bar impressions for permanent record to enable message re-transmission, means for guiding tape in the path of said code bars, and means for perforating said tape to provide feed holes therein in one directional stroke and effecting the feeding of the tape during the return stroke of said last named means.

17. A recording system of electrical circuits comprising a plurality of pulse circuits for effecting code selections, means in said circuits for prolonging the duration of the pulses, correspondingly responsive electrical circuits including code bars for effecting code bar impressions responsive to said code selections for permanent record to enable message re-transmission, means for guiding tape in the path of said code bars, and means for perforating said tape to provide feed holes therein in one directional stroke and effecting the feeding of the tape during the return stroke of said last named means.

18. A recording system of electrical circuits comprising a plurality of pulse circuits for effecting code selections, means in said circuits for prolonging the duration of the pulses, correspondingly responsive electrical circuits including code bars, means for intermittently feeding a tape in the path of said code bars for effecting code bar impressions therein responsive to said code selections for permanent record to enable message re-transmission, means for guiding tape in the path of said code bars, and means for perforating said tape to provide feed holes therein in one directional stroke and effecting the feeding of the tape during the return stroke of said last named means.

19. A recording system of electrical circuits comprising a plurality of pulse circuits for effecting code selections, means in said circuits for single stroke and advancin 

